Mark Kahler

Born : 1959 Cat. M65 Ultrarunner since 1995

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details

Countries visited ?

United States

55,7%

Rank quotient ?This runner's calculation uses 57 eligible race(s): Σ(rank − 1) = 4 100; Σ finishers = 7 360. 4 100 / 7 360 × 100 = 55.71%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed57

Km — ultra races4 087 km

> 100 km4

> 160 km4

> 200 km1

Longest race217,3 km

19th Badwater Ultramarathon — 10/7/2005

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road8,5%

Trail91,5%

Records

50 km4h53'51 100 km13h31'05 50 mi7h55'46 100 mi20h19'03 12 h82,08 km

HISTORY

57 race(s)

Date		Race	Perf.	Rk
2014
26.04	50km	14th Promise Land 50K++	8:01:35 h	261
12.04	50mi	22nd Bull Run Run 50 Miler	11:08:30 h	152
22.03	50km	7th Terrapin Mountain 50 km Race	7:11:36 h	186
2013
27.04	50km	13th Promise Land 50K++	8:56:47 h	303
13.04	50mi	21st Bull Run Run 50 Miler	11:23:49 h	211
23.03	50km	6th Terrapin Mountain 50 km Race	7:40:03 h	229
16.03	50km	8th Elizabeth's Furnace Fat Ass 50 km Race	8:56:00 h	45
23.02	50km	5th Hashawha Hills 50 km Trail Run	6:41:42 h	70
02.02	8h	8th 8 Hour Adventure Trail Run	56.005 km	34
01.01	50km	17th Red Eye 50km	6:44:00 h	9
2012
01.01	50km	16th Red Eye 50km	6:41:00 h	15
2011
16.04	50mi	8th Desert Rats Trail Running Festival 50 Miles	12:51:25 h	38
06.03	50km	1st Montara Mountain 50 km Trail Run	7:21:08 h	5
2010
29.05	50km	3rd Sage Burner Trail Run	7:16:20 h	69
24.04	50mi	21st Zane Grey 50 Mile Endurance Run	14:50:39 h	62
2005
04.09	50km	11th Run On The Sly 50 km	6:54:55 h	36
27.08	31.5mi	8th Tamalpa Headlands 50K	7:48:00 h	146
07.08	50km	24th Skyline 50k Endurance Run	6:13:38 h	75
10.07	135mi	19th Badwater Ultramarathon	41:36:46 h	25
25.06	100mi	32th Western States 100 Mile Endurance Run	28:42:00 h	260
04.06	50km	16th Shadow of the Giants 50K	6:14:14 h	43
21.05	50mi	20th Silver State 50 Miles	12:35:01 h	36
07.05	50mi	22nd Quicksilver 50 Mile Endurance Run	10:20:48 h	46
30.04	100km	10th Miwok 100k Trail race	13:31:05 h	148
02.04	50mi	26th American River 50 Mile Endurance Run	9:33:23 h	171
26.03	50km	4th Pirates Cove Trail Run	6:39:37 h	20
19.03	50km	3rd Rucky Chucky Roundabout 50K	6:33:36 h	48
05.02	50km	27th Jed Smith Ultra Classic - 50 km Race	5:07:57 h	41
2004
09.10	50mi	22nd Dick Collins Firetrails 50 Mile	10:13:19 h	66
05.09	50km	10th Run On The Sly 50 km	6:14:50 h	20
2002
20.04	50mi	11th Leona Divide 50 Mile Run	11:06:48 h	86
23.03	50km	19th San Juan Trail 50 km	6:16:30 h	35
02.03	50mi	5th Smuggler's 50 Miles	10:04:51 h	24
12.01	50mi	22nd Avalon Benefit 50-Mile Run	10:10:14 h	81
2000
12.03	50mi	3rd Smuggler's 50 Miles	11:02:20 h	25
26.02	100km	4th Catalina 100K Trail Run	14:08:55 h	53
29.01	50km	3rd San Gabriel Mountain 50K	7:22:05 h	71
08.01	50mi	20th Avalon Benefit 50-Mile Run	9:54:59 h	58
1999
27.02	100km	3rd Catalina 100K Trail Run	14:28:29 h	60
13.02	50km	16th San Juan Trail 50 km	6:11:02 h	35
30.01	50km	2nd San Gabriel Mountain 50K	6:27:38 h	44
1997
06.09	50km	3rd Baldy Peaks 50K	9:05:12 h	49
02.08	12h	Orange 12 Hour Run	82.076 km	16
05.04	50mi	18th American River 50 Mile Endurance Run	8:46:00 h	165
22.03	50km	11th Crown King Scramble 50K	6:15:33 h	56
16.03	50km	14th San Juan Trail 50 km	5:17:08 h	19
02.02	100mi	5th Rocky Raccoon 100 Mile Trail Run	20:19:03 h	9
11.01	50mi	17th Avalon Benefit 50-Mile Run	7:55:46 h	25
1996
08.12	50km	10th OTHTC High Desert 50K Ultra	4:53:51 h	36
09.11	50mi	13th San Juan Trail 50 Mile	11:02:20 h	22
05.10	50km	3rd Cuyamaca-Laguna 50k Trail Race	6:51:33 h	50
28.09	100mi	11th Angeles Crest 100 Mile	30:17:26 h	65
01.06	50km	7th Shadow of the Giants 50K	5:58:47 h	47
18.05	50mi	5th Lost Boys 50 Mile Trail Run	10:22:06 h	23
06.01	50mi	16th Avalon Benefit 50-Mile Run	9:32:00 h	40
1995
10.12	50km	9th OTHTC High Desert 50K Ultra	5:06:35 h	46
09.09	50km	4th Bulldog 50k Ultra Run	5:59:00 h	47

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	10/7/2005	19th Badwater Ultramarathon	217,26	×4
✓ 2	25/6/2005	32th Western States 100 Mile Endurance Run	160,93	×3
✓ 3	2/2/1997	5th Rocky Raccoon 100 Mile Trail Run	160,93	×3
✓ 4	28/9/1996	11th Angeles Crest 100 Mile	160,93	×3
✓ 5	30/4/2005	10th Miwok 100k Trail race	100,00	×2
✓ 6	26/2/2000	4th Catalina 100K Trail Run	100,00	×2
✓ 7	27/2/1999	3rd Catalina 100K Trail Run	100,00	×2
✓ 8	2/8/1997	Orange 12 Hour Run	82,08	×1
✓ 9	12/4/2014	22nd Bull Run Run 50 Miler	80,47	×1
✓ 10	13/4/2013	21st Bull Run Run 50 Miler	80,47	×1
✓ 11	16/4/2011	8th Desert Rats Trail Running Festival 50 Miles	80,47	×1
✓ 12	24/4/2010	21st Zane Grey 50 Mile Endurance Run	80,47	×1
✓ 13	21/5/2005	20th Silver State 50 Miles	80,47	×1
✓ 14	7/5/2005	22nd Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 15	2/4/2005	26th American River 50 Mile Endurance Run	80,47	×1
✓ 16	9/10/2004	22nd Dick Collins Firetrails 50 Mile	80,47	×1
✓ 17	20/4/2002	11th Leona Divide 50 Mile Run	80,47	×1
✓ 18	2/3/2002	5th Smuggler's 50 Miles	80,47	×1
✓ 19	12/1/2002	22nd Avalon Benefit 50-Mile Run	80,47	×1
✓ 20	12/3/2000	3rd Smuggler's 50 Miles	80,47	×1
✓ 21	8/1/2000	20th Avalon Benefit 50-Mile Run	80,47	×1
✓ 22	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 23	11/1/1997	17th Avalon Benefit 50-Mile Run	80,47	×1
✓ 24	9/11/1996	13th San Juan Trail 50 Mile	80,47	×1
✓ 25	18/5/1996	5th Lost Boys 50 Mile Trail Run	80,47	×1
✓ 26	6/1/1996	16th Avalon Benefit 50-Mile Run	80,47	×1
✓ 27	2/2/2013	8th 8 Hour Adventure Trail Run	56,01	×1
✓ 28	27/8/2005	8th Tamalpa Headlands 50K	50,69	×1
✓ 29	26/4/2014	14th Promise Land 50K++	50,00	×1
✓ 30	22/3/2014	7th Terrapin Mountain 50 km Race	50,00	×1
✓ 31	27/4/2013	13th Promise Land 50K++	50,00	×1
✓ 32	23/3/2013	6th Terrapin Mountain 50 km Race	50,00	×1
✓ 33	16/3/2013	8th Elizabeth's Furnace Fat Ass 50 km Race	50,00	×1
✓ 34	23/2/2013	5th Hashawha Hills 50 km Trail Run	50,00	×1
✓ 35	1/1/2013	17th Red Eye 50km	50,00	×1
✓ 36	1/1/2012	16th Red Eye 50km	50,00	×1
✓ 37	6/3/2011	1st Montara Mountain 50 km Trail Run	50,00	×1
✓ 38	29/5/2010	3rd Sage Burner Trail Run	50,00	×1
✓ 39	4/9/2005	11th Run On The Sly 50 km	50,00	×1
✓ 40	7/8/2005	24th Skyline 50k Endurance Run	50,00	×1
✓ 41	4/6/2005	16th Shadow of the Giants 50K	50,00	×1
✓ 42	26/3/2005	4th Pirates Cove Trail Run	50,00	×1
✓ 43	19/3/2005	3rd Rucky Chucky Roundabout 50K	50,00	×1
✓ 44	5/2/2005	27th Jed Smith Ultra Classic - 50 km Race	50,00	×1
✓ 45	5/9/2004	10th Run On The Sly 50 km	50,00	×1
✓ 46	23/3/2002	19th San Juan Trail 50 km	50,00	×1
✓ 47	29/1/2000	3rd San Gabriel Mountain 50K	50,00	×1
✓ 48	13/2/1999	16th San Juan Trail 50 km	50,00	×1
✓ 49	30/1/1999	2nd San Gabriel Mountain 50K	50,00	×1
✓ 50	6/9/1997	3rd Baldy Peaks 50K	50,00	×1
51	22/3/1997	11th Crown King Scramble 50K	50,00	×1
52	16/3/1997	14th San Juan Trail 50 km	50,00	×1
53	8/12/1996	10th OTHTC High Desert 50K Ultra	50,00	×1
54	5/10/1996	3rd Cuyamaca-Laguna 50k Trail Race	50,00	×1
55	1/6/1996	7th Shadow of the Giants 50K	50,00	×1
56	10/12/1995	9th OTHTC High Desert 50K Ultra	50,00	×1
57	9/9/1995	4th Bulldog 50k Ultra Run	50,00	×1